SEGMENT REPORTING (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	2
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	$ 257,307	$ 253,739	$ 197,323
Cost of revenue	146,140	147,945	116,033
Gross profit	$ 111,167	$ 105,794	$ 81,290
Gross margin	43.00%	42.00%	41.00%
Operating income (loss)	$ (20,298)	$ (993)	$ (8,192)
Loss before income taxes	(21,834)	(3,441)	(13,793)
Investments in unconsolidated affiliates	3,959	5,424	6,704
Total assets	585,816	604,072	399,839
Net assets	422,208	435,854	287,053
Capital expenditures	2,114	1,768	686
Depreciation and amortization	13,966	13,555	11,385
Total long-lived assets	39,068	33,413	35,542
North America Segment | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	161,762	158,898	131,066
Cost of revenue	86,234	84,472	70,163
Gross profit	$ 75,528	$ 74,426	$ 60,903
Gross margin	47.00%	47.00%	46.00%
Operating income (loss)	$ (15,797)	$ 650	$ (4,977)
Loss before income taxes	(13,830)	2,072	(7,871)
Investments in unconsolidated affiliates	3,959	5,424	6,704
Total assets	374,737	441,234	238,550
Net assets	248,882	308,973	156,931
Capital expenditures	837	700	443
Depreciation and amortization	5,216	5,673	4,735
International Segment | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	95,545	94,841	66,257
Cost of revenue	59,906	63,473	45,870
Gross profit	$ 35,639	$ 31,368	$ 20,387
Gross margin	37.00%	33.00%	31.00%
Operating income (loss)	$ (4,501)	$ (1,643)	$ (3,215)
Loss before income taxes	(8,004)	(5,513)	(5,922)
Investments in unconsolidated affiliates	0	0	0
Total assets	211,079	162,838	161,289
Net assets	173,326	126,881	130,122
Capital expenditures	1,277	1,068	243
Depreciation and amortization	8,750	7,882	6,650
United States
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	145,014	141,588	120,244
Total long-lived assets	14,351	12,502	11,805
Canada
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	16,748	17,310	10,822
Total long-lived assets	1,274	719	643
Germany
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	53,529	44,148	29,543
Total long-lived assets	15,429	12,795	14,630
France
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	13,607	18,671	12,615
Total long-lived assets	3,362	3,127	4,205
Spain
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	11,106	14,071	12,995
Total long-lived assets	1,167	1,051	1,209
Italy
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	9,128	10,145	5,850
Total long-lived assets	2,090	1,966	1,944
Switzerland
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	3,472	3,885	3,343
Total long-lived assets	87	63	46
Other International
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	4,703	3,921	1,911
Total long-lived assets	$ 1,308	$ 1,190	$ 1,060